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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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2343 } | 2343 } |
2344 | 2344 |
2345 | 2345 |
2346 void CallFunctionStub::Generate(MacroAssembler* masm) { | 2346 void CallFunctionStub::Generate(MacroAssembler* masm) { |
2347 // rbx : cache cell for call target | 2347 // rbx : cache cell for call target |
2348 // rdi : the function to call | 2348 // rdi : the function to call |
2349 Isolate* isolate = masm->isolate(); | 2349 Isolate* isolate = masm->isolate(); |
2350 Label slow, non_function; | 2350 Label slow, non_function; |
2351 StackArgumentsAccessor args(rsp, argc_); | 2351 StackArgumentsAccessor args(rsp, argc_); |
2352 | 2352 |
2353 // Check that the function really is a JavaScript function. | |
2354 __ JumpIfSmi(rdi, &non_function); | |
2355 | |
2356 // The receiver might implicitly be the global object. This is | 2353 // The receiver might implicitly be the global object. This is |
2357 // indicated by passing the hole as the receiver to the call | 2354 // indicated by passing the hole as the receiver to the call |
2358 // function stub. | 2355 // function stub. |
2359 if (ReceiverMightBeImplicit() || ReceiverIsImplicit()) { | 2356 if (ReceiverMightBeImplicit()) { |
2360 Label try_call, call, patch_current_context; | 2357 Label call; |
2361 if (ReceiverMightBeImplicit()) { | 2358 // Get the receiver from the stack. |
2362 // Get the receiver from the stack. | 2359 __ movq(rax, args.GetReceiverOperand()); |
2363 __ movq(rax, args.GetReceiverOperand()); | 2360 // Call as function is indicated with the hole. |
2364 // Call as function is indicated with the hole. | 2361 __ CompareRoot(rax, Heap::kTheHoleValueRootIndex); |
2365 __ CompareRoot(rax, Heap::kTheHoleValueRootIndex); | 2362 __ j(not_equal, &call, Label::kNear); |
2366 __ j(not_equal, &try_call, Label::kNear); | |
2367 } | |
2368 // Patch the receiver on the stack with the global receiver object. | 2363 // Patch the receiver on the stack with the global receiver object. |
2369 // Goto slow case if we do not have a function. | 2364 __ movq(rcx, GlobalObjectOperand()); |
2370 __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); | 2365 __ movq(rcx, FieldOperand(rcx, GlobalObject::kGlobalReceiverOffset)); |
2371 __ j(not_equal, &patch_current_context); | |
2372 CallStubCompiler::FetchGlobalProxy(masm, rcx, rdi); | |
2373 __ movq(args.GetReceiverOperand(), rcx); | 2366 __ movq(args.GetReceiverOperand(), rcx); |
2374 __ jmp(&call, Label::kNear); | 2367 __ bind(&call); |
| 2368 } |
2375 | 2369 |
2376 __ bind(&patch_current_context); | 2370 // Check that the function really is a JavaScript function. |
2377 __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex); | 2371 __ JumpIfSmi(rdi, &non_function); |
2378 __ movq(args.GetReceiverOperand(), kScratchRegister); | 2372 // Goto slow case if we do not have a function. |
2379 __ jmp(&slow); | 2373 __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); |
2380 | 2374 __ j(not_equal, &slow); |
2381 __ bind(&try_call); | |
2382 // Goto slow case if we do not have a function. | |
2383 __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); | |
2384 __ j(not_equal, &slow); | |
2385 | |
2386 __ bind(&call); | |
2387 } else { | |
2388 // Goto slow case if we do not have a function. | |
2389 __ CmpObjectType(rdi, JS_FUNCTION_TYPE, rcx); | |
2390 __ j(not_equal, &slow); | |
2391 } | |
2392 | 2375 |
2393 if (RecordCallTarget()) { | 2376 if (RecordCallTarget()) { |
2394 GenerateRecordCallTarget(masm); | 2377 GenerateRecordCallTarget(masm); |
2395 } | 2378 } |
2396 | 2379 |
2397 // Fast-case: Just invoke the function. | 2380 // Fast-case: Just invoke the function. |
2398 ParameterCount actual(argc_); | 2381 ParameterCount actual(argc_); |
2399 | 2382 |
2400 if (ReceiverMightBeImplicit()) { | 2383 if (ReceiverMightBeImplicit()) { |
2401 Label call_as_function; | 2384 Label call_as_function; |
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2424 TypeFeedbackCells::MegamorphicSentinel(isolate)); | 2407 TypeFeedbackCells::MegamorphicSentinel(isolate)); |
2425 } | 2408 } |
2426 // Check for function proxy. | 2409 // Check for function proxy. |
2427 __ CmpInstanceType(rcx, JS_FUNCTION_PROXY_TYPE); | 2410 __ CmpInstanceType(rcx, JS_FUNCTION_PROXY_TYPE); |
2428 __ j(not_equal, &non_function); | 2411 __ j(not_equal, &non_function); |
2429 __ PopReturnAddressTo(rcx); | 2412 __ PopReturnAddressTo(rcx); |
2430 __ push(rdi); // put proxy as additional argument under return address | 2413 __ push(rdi); // put proxy as additional argument under return address |
2431 __ PushReturnAddressFrom(rcx); | 2414 __ PushReturnAddressFrom(rcx); |
2432 __ Set(rax, argc_ + 1); | 2415 __ Set(rax, argc_ + 1); |
2433 __ Set(rbx, 0); | 2416 __ Set(rbx, 0); |
2434 __ SetCallKind(rcx, CALL_AS_FUNCTION); | 2417 __ SetCallKind(rcx, CALL_AS_METHOD); |
2435 __ GetBuiltinEntry(rdx, Builtins::CALL_FUNCTION_PROXY); | 2418 __ GetBuiltinEntry(rdx, Builtins::CALL_FUNCTION_PROXY); |
2436 { | 2419 { |
2437 Handle<Code> adaptor = | 2420 Handle<Code> adaptor = |
2438 masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(); | 2421 masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(); |
2439 __ jmp(adaptor, RelocInfo::CODE_TARGET); | 2422 __ jmp(adaptor, RelocInfo::CODE_TARGET); |
2440 } | 2423 } |
2441 | 2424 |
2442 // CALL_NON_FUNCTION expects the non-function callee as receiver (instead | 2425 // CALL_NON_FUNCTION expects the non-function callee as receiver (instead |
2443 // of the original receiver from the call site). | 2426 // of the original receiver from the call site). |
2444 __ bind(&non_function); | 2427 __ bind(&non_function); |
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5538 __ bind(&fast_elements_case); | 5521 __ bind(&fast_elements_case); |
5539 GenerateCase(masm, FAST_ELEMENTS); | 5522 GenerateCase(masm, FAST_ELEMENTS); |
5540 } | 5523 } |
5541 | 5524 |
5542 | 5525 |
5543 #undef __ | 5526 #undef __ |
5544 | 5527 |
5545 } } // namespace v8::internal | 5528 } } // namespace v8::internal |
5546 | 5529 |
5547 #endif // V8_TARGET_ARCH_X64 | 5530 #endif // V8_TARGET_ARCH_X64 |
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